When any point say (x,y) is rotated 270 degree counterclockwise then it changes to (y,-x).
So for any image, you can collect given coordinate points
then apply above formula like if given point is (1,3) then it will change to (3,-1) after 270 degree counterclockwise rotation.
Answer:
<u>slope=-2</u>
Step-by-step explanation:
Okay so we just take those coordinates and apply them to this formula:
y2-y1/x2-1
then simplify to get -2
if you want me to elaborate just say the word
Answer: 1 hour 20 minutes
Step-by-step explanation:
Given : The old machine could shred a truckload of paper in 4 hours.
Rate of work done by old machine =
The new machine could shred the same truckload in 2 hours.
Rate of work done by new machine =
Let 't' be the time taken by both of them working together , then we have the following equation:-
Since 1 hour = 60 minutes
Then,
Hence, it will take 1 hour 20 minutes to shred the same truckload of paper if Ron runs both shredders at the same time.
P=12,500×(1+0.23)^(4)
P=28,610.83
Proportion:
a/b = c/d
where: cross products are equal.
ad = bc
a/b = c/d
a = 4 4/9 = 28/x
b = 9 cross products
c = 28 ad = bc
d = x 4x = 9*28
4x = 252
4x/4 = 252/4
x = 63
4/9 = 28/x
4/9 = 28/63
4/9 is the simplified factor of 28/63.
28 ÷ 7 = 4
63 ÷ 7 = 9
Another solution for this is.
4/9 = 28/x
x is a denominator, we need to eliminate it. To do so, we must make x the numerator. so we multiply both side with x.
4/9 * x/1 = 28/x * x/1
4x/9 = 28
4x/9 * 9/1 = 28 * 9/1 *eliminate the denominator 9 by multiplying both sides with numerator 9.
4x = 252
4x/4 = 252/4
x = 63